> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sageprotocol.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Updating Channels

>  

Channel owners can update channel information including descriptions, avatars, banners, and the casing of channel names. Updates require explicitly providing all fields to avoid unintended overwrites; unchanged fields should retain existing values.

**React Hook Example for Updating Channels:**

```typescript theme={null}
import { useChannel } from '@sageprotocol/sdk/react';
import { useWallet } from '@suiet/wallet-kit';

function UpdateChannel({ channel }) {
  const { update } = useChannel();
  const { account, signAndExecuteTransaction } = useWallet();

  async function handleUpdate() {
    const result = await update({
      amounts: [0, 0],                                // Required protocol fees
      avatar: channel.avatar,                         // Existing or updated blob ID
      banner: channel.banner,                         // Existing or updated blob ID
      channelId: channel.id,                          // Channel ID
      channelName: channel.name,                      // Casing updates only (e.g., 'crypto-art' → 'CRYPTO-ART')
      description: '**Updated community guidelines and information**', // Markdown-supported description
      self: account.address                           // Channel owner's wallet address
    });

    if (result.ok) {
      await signAndExecuteTransaction({ transaction: result.transaction });
      console.log("Channel updated successfully!");
    } else {
      console.error("Error updating channel:", result.err);
    }
  }

  return <button onClick={handleUpdate}>Update Channel</button>;
}

export default UpdateChannel;
```

<Accordion title="Direct JavaScript Example for Updating Channels" icon="rectangle-code" iconType="sharp-solid">
  ```javascript theme={null}
  import { SageClient } from '@sageprotocol/sdk';

  const sageClient = new SageClient({
    appId: 'your-app-id',                      // Required application ID
    channelRegistryId: 'your-registry-id',     // Required channel registry ID
    network: 'testnet'                         // 'testnet' or 'mainnet'
  });

  await sageClient.initialize();

  async function updateChannel(channel, walletAddress) {
    const result = await sageClient.updateChannel({
      amounts: [0, 0],                                     // Required protocol fees
      avatar: channel.avatar,                              // Existing or updated blob ID
      banner: channel.banner,                              // Existing or updated blob ID
      channelId: channel.id,                               // Channel ID
      channelName: channel.name,                           // Casing updates only
      description: '**Updated community guidelines and information**', // Markdown-supported description
      self: walletAddress                                  // Channel owner's wallet address
    });

    if (result.ok) {
      await signAndExecuteTransaction({ transaction: result.transaction });
      console.log("Channel updated successfully!");
    } else {
      console.error("Error updating channel:", result.err);
    }
  }

  updateChannel({
    id: 'your-channel-id',
    avatar: 12345,
    banner: 67890,
    name: 'crypto-art'
  }, walletAddress);
  ```
</Accordion>

## Important Notes:

* **Complete Replacement:** Updates are full replacements; explicitly provide all fields, using existing values for unchanged fieldsdocssage\_sdk.
* **Name Casing Restrictions:** Channel names can only be modified by changing letter casing, not by introducing new characters or wordssage\_sdk.
* **Transaction Signing:** All updates require explicit signing and execution via the owner's walletdocs.